Patents by Inventor Min-Soo Choi

Min-Soo Choi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240418694
    Abstract: Disclosed is an electrical plant monitoring device which includes a plurality of flexible electrodes that are attached to a plate-shaped tissue and a tubular tissue of a plant, an impedance measurement unit that obtains electrical signals by using the plurality of flexible electrodes and measures impedance values associated with the plate-shaped tissue and the tubular tissue based on the electrical signals, and a spectrum monitor that generates an impedance spectrum based on the impedance values and monitors the impedance spectrum to sense an ion stress of the plant.
    Type: Application
    Filed: June 12, 2024
    Publication date: December 19, 2024
    Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Korea Advanced Institute Of Science And Technology
    Inventors: JAE JOON KIM, Seongjun PARK, Chan Woo PARK, Sungha JEON, Min-Soo CHOI, Ji-won HONG, Kiwook HWANG
  • Publication number: 20240395215
    Abstract: A display device includes a plurality of pixels in which pixels located in a selected area emit light in a sensing pattern; a plurality of optical sensors generating sensing signals corresponding to the amount of light received; and a circuit determining amounts of deterioration of the plurality of optical sensors based on the sensing signals. The circuit determines a current deterioration degree based on the amounts, sets a light emitting luminance of the sensing pattern to a first value based on the current deterioration degree, and the first value is larger than a second value associated with a previous deterioration degree when the current deterioration degree is greater than the previous deterioration degree.
    Type: Application
    Filed: December 19, 2023
    Publication date: November 28, 2024
    Inventors: MIN SOO CHOI, JIN SOO JUNG, SOUNG WOOK KIM, SEOK GYU YOON, BYUNG SEOK LEE
  • Patent number: 12039930
    Abstract: A display device including: a display panel; a current compensation circuit executing a current compensation operation in which a load is calculated based on input image data, and output compensation image data is generated by compensating for the input image data based on the load; a data driver converting the compensation image data into a data voltage based on a gamma reference voltage and a data driving voltage, and outputting the data voltage; a current sensing circuit sensing a driving current of the display panel and comparing the driving current with a preset reference current to output a protection signal; a voltage generator generating a driving voltage, the gamma reference voltage, and the data driving voltage; and a voltage control circuit generating a first voltage control signal to control a first target compensation value of the gamma reference voltage or the data driving voltage in response to the protection signal.
    Type: Grant
    Filed: February 1, 2023
    Date of Patent: July 16, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kihyun Pyun, Min-Soo Choi
  • Patent number: 12007817
    Abstract: A display device includes a display panel, a data driver which transmits a data voltage to the display panel, a first flexible printed circuit board attached to the display panel and including an input side wiring electrically connected to the data driver, a first printed circuit board (PCB) electrically connected to the input side wiring to transmit a high-speed driving signal to the data driver, and a metal tape overlapping the input side wiring in a plan view and attached on the first flexible printed circuit board, where a part of the metal tape overlapping the input side wiring in the plan view defines an opening.
    Type: Grant
    Filed: June 27, 2023
    Date of Patent: June 11, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yeon-Sun Na, Min-Soo Choi
  • Patent number: 11968775
    Abstract: An embodiment of a printed circuit board includes a first insulating layer, a metal layer disposed above the first insulating layer, a second insulating layer disposed above the metal layer, and signal lines disposed above the second insulating layer, the signal lines extending in a first direction and having line widths in a second direction perpendicular to the first direction. The metal layer has open areas overlapping the signal lines in a third direction perpendicular to the first and second directions. In another embodiment, the open areas are replaced with metal meshes.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: April 23, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yeon Sun Na, Min Soo Choi
  • Publication number: 20240016028
    Abstract: A display device includes display pixels arranged in a display area of a display panel, near-infrared light emitting pixels alternately arranged with the display pixels, light sensing pixels alternately arranged with the display pixels, a display scan driver that supplies display scan signals to the display pixels and the near-infrared light emitting pixels, a component detection circuit that analyzes component information according to light sensing signals reflected from a front side by using the light sensing signals received from the light sensing pixels, and a main driving circuit that controls driving timings of the display pixels, the light emitting pixels, and the display scan driver.
    Type: Application
    Filed: March 8, 2023
    Publication date: January 11, 2024
    Inventors: Soung Wook KIM, Seok Gyu YOON, Jun Yong SHIN, Jin Soo JUNG, Kun Wook CHO, Min Soo CHOI
  • Patent number: 11847981
    Abstract: A light source apparatus includes a plurality of light source gate lines extending in a first direction, a plurality of light source data lines extending in a second direction crossing the first direction, a plurality of light source emission lines, a plurality of feedback lines and a plurality of light source blocks. At least one of the light source blocks is connected to the light source gate line, the light source data line, the light source emission line and the feedback line.
    Type: Grant
    Filed: January 3, 2023
    Date of Patent: December 19, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kihyun Pyun, Moonshik Kang, Dae-Sik Lee, Jun Pyo Lee, Min-Soo Choi, Songyi Han
  • Publication number: 20230360592
    Abstract: A display device includes a display panel including a plurality of pixels, a data driver configured to apply a plurality of data voltages generated based on input image data to the pixels, an initialization voltage generator configured to generate an initialization voltage that initializes a light emitting element included in each of the pixels, a timing controller configured to generate a constant current control signal based on a load of the input image data, and a constant current generator configured to generate and transmit a constant current to the initialization voltage generator in response to the constant current control signal. As a result, the display device may reduce ripple of an initialization voltage by adjusting the initialization voltage according to a load of input image data, and a display device having a desirable signal-to-noise ratio (SNR) characteristic of a sensing operation may be provided.
    Type: Application
    Filed: April 3, 2023
    Publication date: November 9, 2023
    Inventors: KIHYUN PYUN, MIN-SOO CHOI
  • Publication number: 20230341909
    Abstract: A display device includes a display panel, a data driver which transmits a data voltage to the display panel, a first flexible printed circuit board attached to the display panel and including an input side wiring electrically connected to the data driver, a first printed circuit board (PCB) electrically connected to the input side wiring to transmit a high-speed driving signal to the data driver, and a metal tape overlapping the input side wiring in a plan view and attached on the first flexible printed circuit board, where a part of the metal tape overlapping the input side wiring in the plan view defines an opening.
    Type: Application
    Filed: June 27, 2023
    Publication date: October 26, 2023
    Inventors: Yeon-Sun NA, Min-Soo CHOI
  • Publication number: 20230317005
    Abstract: A display device including: a display panel; a current compensation circuit executing a current compensation operation in which a load is calculated based on input image data, and output compensation image data is generated by compensating for the input image data based on the load; a data driver converting the compensation image data into a data voltage based on a gamma reference voltage and a data driving voltage, and outputting the data voltage; a current sensing circuit sensing a driving current of the display panel and comparing the driving current with a preset reference current to output a protection signal; a voltage generator generating a driving voltage, the gamma reference voltage, and the data driving voltage; and a voltage control circuit generating a first voltage control signal to control a first target compensation value of the gamma reference voltage or the data driving voltage in response to the protection signal.
    Type: Application
    Filed: February 1, 2023
    Publication date: October 5, 2023
    Inventors: KIHYUN PYUN, Min-Soo Choi
  • Patent number: 11714466
    Abstract: A display device includes a display panel, a data driver which transmits a data voltage to the display panel, a first flexible printed circuit board attached to the display panel and including an input side wiring electrically connected to the data driver, a first printed circuit board (PCB) electrically connected to the input side wiring to transmit a high-speed driving signal to the data driver, and a metal tape overlapping the input side wiring in a plan view and attached on the first flexible printed circuit board, where a part of the metal tape overlapping the input side wiring in the plan view defines an opening.
    Type: Grant
    Filed: November 14, 2022
    Date of Patent: August 1, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yeon-Sun Na, Min-Soo Choi
  • Publication number: 20230154420
    Abstract: A light source apparatus includes a plurality of light source gate lines extending in a first direction, a plurality of light source data lines extending in a second direction crossing the first direction, a plurality of light source emission lines, a plurality of feedback lines and a plurality of light source blocks. At least one of the light source blocks is connected to the light source gate line, the light source data line, the light source emission line and the feedback line.
    Type: Application
    Filed: January 3, 2023
    Publication date: May 18, 2023
    Inventors: Kihyun PYUN, Moonshik KANG, Dae-Sik LEE, Jun Pyo LEE, Min-Soo CHOI, Songyi HAN
  • Publication number: 20230079534
    Abstract: A display device includes a display panel, a data driver which transmits a data voltage to the display panel, a first flexible printed circuit board attached to the display panel and including an input side wiring electrically connected to the data driver, a first printed circuit board (PCB) electrically connected to the input side wiring to transmit a high-speed driving signal to the data driver, and a metal tape overlapping the input side wiring in a plan view and attached on the first flexible printed circuit board, where a part of the metal tape overlapping the input side wiring in the plan view defines an opening.
    Type: Application
    Filed: November 14, 2022
    Publication date: March 16, 2023
    Inventors: Yeon-Sun NA, Min-Soo CHOI
  • Patent number: 11587980
    Abstract: A display device includes a display substrate, a light emitting element layer disposed on a surface of the display substrate and including display pixels, a sensing substrate having a surface attached to another surface of the display substrate, a sensing element layer disposed on another surface of the sensing substrate and including sending pixels that each sense light of a color, and a photorefractive layer disposed on the sensing element layer and including micro lenses.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: February 21, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyeon Gu Cho, Min Soo Choi, Seok Gyu Yoon, Jae Jin Lyu
  • Patent number: 11580917
    Abstract: A light source apparatus includes a plurality of light source gate lines extending in a first direction, a plurality of light source data lines extending in a second direction crossing the first direction, a plurality of light source emission lines, a plurality of feedback lines and a plurality of light source blocks. At least one of the light source blocks is connected to the light source gate line, the light source data line, the light source emission line and the feedback line.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: February 14, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kihyun Pyun, Moonshik Kang, Dae-Sik Lee, Jun Pyo Lee, Min-Soo Choi, Songyi Han
  • Patent number: 11568795
    Abstract: The display device includes a display panel, a printed circuit board on which a timing controller is mounted, and a connection film on which a data driver is mounted. Pixels and a gate driving circuit are disposed in a display area of the display panel. The connection film includes output lines connecting the data driver and the display panel, and first connection lines connecting the printed circuit board and the display panel. The first connection lines overlap the first area on which the data driver is mounted and are disposed between the output lines.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: January 31, 2023
    Inventors: Tae Gon Im, Min Soo Choi, Ji Hyun Kim, Jun Pyo Lee
  • Patent number: 11520384
    Abstract: A display device includes a display panel, a data driver which transmits a data voltage to the display panel, a first flexible printed circuit board attached to the display panel and including an input side wiring electrically connected to the data driver, a first printed circuit board (PCB) electrically connected to the input side wiring to transmit a high-speed driving signal to the data driver, and a metal tape overlapping the input side wiring in a plan view and attached on the first flexible printed circuit board, where a part of the metal tape overlapping the input side wiring in the plan view defines an opening.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: December 6, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yeon-Sun Na, Min-Soo Choi
  • Patent number: 11353731
    Abstract: A curved display module includes a curved display panel curved with a first curvature in a first direction. A plurality of flexible circuit films are connected to a side portion of the curved display panel. A plurality of driving chips are each mounted on the flexible circuit films. A printed circuit board is connected to the flexible circuit films and is curved with a second curvature in the first direction. Two sides parallel to each other of each of the flexible circuit films are in direct contact with the curved display panel at first and second contact points, respectively, and are in direct contact with the printed circuit board at third and fourth contact points, respectively. A distance between the first and third contact points is different from a distance between the second and fourth contact points.
    Type: Grant
    Filed: February 16, 2021
    Date of Patent: June 7, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyoseok Yun, Min-soo Choi
  • Publication number: 20220151058
    Abstract: An embodiment of a printed circuit board includes a first insulating layer, a metal layer disposed above the first insulating layer, a second insulating layer disposed above the metal layer, and signal lines disposed above the second insulating layer, the signal lines extending in a first direction and having line widths in a second direction perpendicular to the first direction. The metal layer has open areas overlapping the signal lines in a third direction perpendicular to the first and second directions. In another embodiment, the open areas are replaced with metal meshes.
    Type: Application
    Filed: May 20, 2021
    Publication date: May 12, 2022
    Inventors: Yeon Sun NA, Min Soo CHOI
  • Patent number: 11313882
    Abstract: A battery management system, a battery pack including same and a method for determining a failure in a current detecting circuit. The system includes the current detecting circuit configured to detect a reference current representing a current flowing through a high current path of the battery pack, a bidirectional switch including a charging FET and a discharging FET installed on the high current path, and a control unit. The control unit detects a first voltage across the charging FET and a second voltage across the discharging FET while a first high level voltage is applied to a gate of the charging FET and a second high level voltage is applied to a gate of the discharging FET. The control unit determines a failure in the current detecting circuit based on at least one of the first voltage and the second voltage and the reference current.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: April 26, 2022
    Inventors: Young-Ho Kim, Min-Soo Choi